Esoteric Clocks Owners / and cables

A questions to owners of Esoteric clocks and what BNC cables they are using to connect to their players. I am using Nirvana Digital Cables top of their line up - and was wondering do these 75ohm cables make a real sonic difference ???...as they are not carrying audio signals ???? Now, I was suprised to hear a difference when a went to a real good power cord on my clock ....but what about these cables ??? Your thoughts on this question and also what brands you are using and why. Many thanks.